He plays around with a home made forge in the back yard turning old files into knives. He explained the difference in the two metals.

The new washers do seem to need a bit more torque. I think all is dry except for one connection. But I don't want to push it with the long 19mm wrench I'm using. We'll be taking off soon for a couple weeks, no time to be chasing down fuel fittings after I damage one.